/*
 * (c) Copyright Ascensio System SIA 2010-2023
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
 * street, Riga, Latvia, EU, LV-1050.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */

!window.common && (window.common = {});

common.localStorage = new (function() {
    var _storeName, _filter;
    var _store = {};

    var ongetstore = function(data) {
        if (data.type == 'localstorage') {
            _store = data.keys;
        }
    };

    Common.Gateway.on('internalcommand', ongetstore);

    var _refresh = function() {
        if (!_lsAllowed)
            Common.Gateway.internalMessage('localstorage', {cmd:'get', keys:_filter});
    };

    var _save = function() {
        if (!_lsAllowed)
            Common.Gateway.internalMessage('localstorage', {cmd:'set', keys:_store});
    };

    var _setItem = function(name, value, just) {
        if (_lsAllowed) {
            try
            {
                localStorage.setItem(name, value);
            }
            catch (error){}

        } else {
            _store[name] = value;

            if (just===true) {
                Common.Gateway.internalMessage('localstorage', {
                    cmd:'set',
                    keys: {
                        name: value
                    }
                });
            }
        }
    };

    var _setItemAsBool = function(name, value, just) {
        _setItem(name, value ? 1 : 0, just);
    };

    var _getItem = function(name) {
        if (_lsAllowed)
            return localStorage.getItem(name);
        else
            return _store[name]===undefined ? null : _store[name];
    };

    var _getItemAsBool = function (name, defValue) {
        var value = _getItem(name);
        defValue = defValue || false;
        return (value!==null) ? (parseInt(value) != 0) : defValue;
    };

    var _getItemExists = function (name) {
        var value = _getItem(name);
        return value !== null;
    };

    var _removeItem = function(name) {
        if (_lsAllowed)
            localStorage.removeItem(name);
        else
            delete _store[name];
    };

    try {
        var _lsAllowed = !!window.localStorage;
    } catch (e) {
        _lsAllowed = false;
    }

    return {
        getId: function() {
            return _storeName;
        },
        setId: function(name) {
            _storeName = name;
        },
        getItem: _getItem,
        getBool: _getItemAsBool,
        setBool: _setItemAsBool,
        setItem: _setItem,
        removeItem: _removeItem,
        setKeysFilter: function(value) {
            _filter = value;
        },
        getKeysFilter: function() {
            return _filter;
        },
        itemExists: _getItemExists,
        sync: _refresh,
        save: _save
    };
})();
